Temperature-dependent EXAFS measurements of InP

被引：0

作者：

Schnohr, C. S. ^{[1
]}

Kluth, P. ^{[1
]}

Araujo, L. L. ^{[1
]}

Sprouster, D. J. ^{[1
]}

Foran, G. J. ^{[2
]}

Ridgway, M. C. ^{[1
]}

机构：

[1] Australian Natl Univ, Dept Elect Mat Engn, Res Sch Phys Sci & Engn, GPO Box 4, Canberra, ACT 0200, Australia

[2] Australian Nucl Sci & Technol Org, Menai, NSW, Australia

来源：

SYNCHROTRON RADIATION IN MATERIALS SCIENCE | 2009年 / 1092卷

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D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The extended X-ray absorption fine structure (EXAFS) of crystalline InP was measured in the temperature range of 20 - 295 K. Structural parameters were determined for the first, second and third nearest neighbor (NN) shells. The Debye-Waller factors increase as functions of both radial distance and temperature. The first NN Debye-Waller factor increases slowly with temperature whereas those for the second and third NN shell increase significantly. The influence of correlated motion on the vibrational behavior of the different shells is readily evidenced. Fitting an Einstein model to the first NN Debye-Waller factor yields an Einstein temperature theta(E) = 394 +/- 8 K, compared to a value of theta(E) = 360 +/- 24 K for GaAs. Debye temperatures reported for InP vary between 220 and 440 K depending on the temperature and method of determination.

引用

页码：132 / +

页数：2

共 4 条

[1]

Adachi S, 2005, WILEY SER MATER ELEC, P1, DOI 10.1002/0470090340

[2] AN EXAFS STUDY OF THERMAL DISORDER IN GAAS [J].